Masteries

Offense:
21

Defense:
1

Utility:
8

I went 26/6/12 with this build in a 4v5. I get Banshee's Veil early because it helps block a lot of damage early game and helps you escape. I have only used this as a mid because it costs so much it may be hard on a side lane. Note a build does not mean you will be good with Teemo it really is about how you use your mushrooms and play him in fights and when you help your team vs taking down a tower.

Items
First I get Doron's Shield and 1 Health Potion
Second I get Boot's of Speed and Ruby Crystal
3rd I get Banshee's Veil
4th I get Malady starting with Vampiric Scepter
5th I get Infinity Edge starting with BF Sword
6th I get Frozen Mallet starting with Giant's Belt
7th I sell Doron's Shield to get Zeal
8th I get Phantom Dancer

League of Legends is a team based, real time strategy game set in a mythical world of swords & magic where epic battles decide the fate of mystical nations. Game players take on the role of a Summoner who conjures and controls champions to fight for them at the Institute of War. During game play champions gain experience and items to enhance their skills and abilities. How players develop and play their champions can be the difference between a crushing defeat or a glorious victory!